import Vue from 'vue'
import Router from 'vue-router'
// import Login from './components/Login'
// import Home from './components/Home'
// import Welcome from './components/Welcome'
const Login = () => import(/* webpackChunkName: "longin_home_welcome" */ './components/Login')
const Home = () => import(/* webpackChunkName: "longin_home_welcome" */ './components/Home')
const Welcome = () => import(/* webpackChunkName: "longin_home_welcome" */ './components/Welcome')
// import Users from './components/user/Users'
// import Rights from './components/power/Rights'
// import Roles from './components/power/Roles'
const Users = () => import(/* webpackChunkName: "users_rights_roles" */ './components/user/Users')
const Rights = () => import(/* webpackChunkName: "users_rights_roles" */ './components/power/Rights')
const Roles = () => import(/* webpackChunkName: "users_rights_roles" */ './components/power/Roles')
// import Categories from './components/goods/Cate'
// import Params from './components/goods/Params'
// import List from './components/goods/List'
// import Add from './components/goods/Add'
const Categories = () => import(/* webpackChunkName: "goods_add" */ './components/goods/Cate')
const Params = () => import(/* webpackChunkName: "goods_add" */ './components/goods/Params')
const List = () => import(/* webpackChunkName: "goods_add" */ './components/goods/List')
const Add = () => import(/* webpackChunkName: "goods_add" */ './components/goods/Add')
// import Order from './components/order/Order'
// import Report from './components/report/Report'
const Order = () => import(/* webpackChunkName: "goods_add" */ './components/order/Order')
const Report = () => import(/* webpackChunkName: "goods_add" */ './components/report/Report')

Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Categories },
        { path: '/params', component: Params },
        { path: '/goods', component: List },
        { path: '/goods/add', component: Add },
        { path: '/orders', component: Order },
        { path: '/reports', component: Report }
      ]
    }
  ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to and from are Route Object,next() must be called to resolve the hook}
  // to 将要访问的路径，from从哪个路径跳转而来，next是一个函数表示放行：next（） 放行，next（’login‘）强制跳转
  if (to.path === '/login') {
    return next()
  }
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) {
    return next('/login')
  }
  next()
})

export default router
